Chris LaPanse

Agreed, though below about K impulse or so, the problem with a boosted dart becomes squeezing the recovery components into the tiny dart...

I know I'll be going for the I record at some point, though probably not until next year 🙂

You can take it either on site or before, it doesn't really matter. Most people just take it at the launch.

Sounds like it should be a nice flight. I would use a small vent hole at least, as you will be going quite high. As Warren said, one good way is to drill it through the coupler, as this will seal it w...

Very cool 🙂 What motor did it have, and how high did it get?

Very true, but I'm not claiming to keep a low profile 😉

If you do not put any black powder in the well, the delay charge is weak enough to not significantly change the pressure in the airframe. Just use the RRC2 for all deployment - it is a great altimeter...

Low profile? 😆 Thanks Ed - it's looking like I'll definitely be flying now, as someone will have a tracker. Here's hoping that it's clear and calm...

I really wouldn't try that - it's a recipe for disaster if the airstarts don't fire. Just use a full electronic deploy setup if you want to do this. It's more reliable, and not that difficult. As for ...

Chris, we'll see how it goes... I'm going to try to lob three flights up that all require tracking, so I'll be bizzy swapping from one to another to another. If I can crack off all three flights, I'l...

Does anyone have a tracker of some kind that I could borrow on this Saturday? I'd love to put something to 10k or so, but I won't be doing it unless I could borrow a tracker of some kind.

I'll definitely be looking out for it at LDRS - I'm quite interested in it. If you look at the drawings though, it certainly implies that only the central hole should be open. It states in the drawing...

I don't know about that... The 54mm casings can take a LOT more pressure than they normally run at - failure should be around 1600psi from what I've heard, while they normally run at 700-900. So, it c...

Hmm - looking some more at the drawings, it appears that the M750 only has the central nozzle of the 98mm medusa open - I wonder why it has the medusa then...

Looking at the drawings on the Aerotech site, the J90 should only have the center hole open, the J135 should have the center and 2 side ones (if you oriented this carefully, you could get perfectly ev...